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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-3414) Facility to query serializable types such as Writables for 'raw length'
Date Mon, 19 May 2008 08:46:55 GMT
Facility to query serializable types such as Writables for 'raw length'
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                 Key: HADOOP-3414
                 URL: https://issues.apache.org/jira/browse/HADOOP-3414
             Project: Hadoop Core
          Issue Type: Improvement
          Components: io
            Reporter: Arun C Murthy


Currently we need to jump through hoops to get the 'raw length' of serializable types for
e.g. SequenceFile.Writer.append needs to copy the key/value into a buffer and then check the
buffer's size to figure the record/key/value lenghts. Obviously this can be improved to do
away with the extra copy if we had types which could be queried for it's raw-length.

Thoughts?

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